Hydraulic air-compressor.



PETER BERNSTEIN, OF MLHEIM-ON-THE-RHIN E, GERMANY. HYDRAULIC AIR-COMPRESSOR.

. Specification of'lLetters Patent.

Patented July 14, 1908.

Application mea December 17, laos. serial No. assu/i9. y

To all whom it may concern@ Be it known that I, PETEaBERNsTEIN, a subject ofA the Emperor of Germany, residing at Mlheim-on-the-Rhine, German have invented new and useful Im rovements in Hydraulic AirCompressors, o whichv the lollowing is a specification.

h e present invention relatesv to hydrau lic alr-compressors in which the energy of streams of water coming from different heights can be utilized in one and the same l compressing apparatus which is particu arly advantageous ln mines.

e accompanying `(,lrawr'lg shows avlertical section through such an air comu 'a is the conduit lcarrying the water coming from thev greatest height, t is a suction device for the air, c is the down flow conduit, d is the separating chamber, e is another conduit carrymg water coming from a lower height, f is a suctlon device for it, is the down ow conduit therefrom, whic is in close pl'oximit` to the conduit c' and may surround it. Bot l ischarge into the same separating chamber d. h is the discharge conduit for the water, i. is the outlet for the compressed air. y

vThe water coming from both heights a, and e falls upon the" bottom of the separating chamber d, carrying the air bubbles with it. The air bubbles then rise to the up er art of this chamber while the water is discharged through the conduit h. The height of this discharge conduit fixes the compression of the air in the upper'part of the chamber d.

If 1t is desired to produce a compression of air in the separating chamber d equal to four `used for carrying air from' this height is 120 40=80 lneters.

atmospheres, the height of. the discharge tube orc annel h, through which the water leaves the se aratin meters. If t e con meters fromthe waterlevel in the separating chamber d, the down llow conduit c which is the mixture of water and If the conduite has al height of 8O meters, the utilizable height ,of its'downilow conduit g is 80-404-40 meters.` Thus each down flow conduit is' of sulcientheight to Vovercome the counter-action of Water in the discharge channel. l"

What I ,claim as my invention is:

In a h draulic air com ressing a the com ination of'apliilrality o leading Water from different heights, air 'inlets in the upper part of each conduit through which alr 1s introduced by suction, a

receivlng chamber oli a lower level common to all the-conduits into which the air and paratus,

water are separated and the air compressed,

an outlet for compressed air in the upper part of the receiving chamber end a water ischarge pipe communicating with the lower part of the receiving chamber and `ex tending upward therefrom to any desirable height, so as to maintain hydrostatic pres-4 sure in the scribed.

chamberpd, must be 40 4 uit a has a height of 120\ conduits y chamber, substantially as de,-

In Witness whereof I have hereunto s et my hand in presence of two Wltnesses.

PETER r BnRNsrlnNl Witnesses: t

MICHAEL ZIMMERMAN, g GUsTAv LeEHR, 

